CN107489333A - A kind of electric car window anti-pinch parameter learning method and anti-pinching car window control method - Google Patents
A kind of electric car window anti-pinch parameter learning method and anti-pinching car window control method Download PDFInfo
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- CN107489333A CN107489333A CN201710646880.3A CN201710646880A CN107489333A CN 107489333 A CN107489333 A CN 107489333A CN 201710646880 A CN201710646880 A CN 201710646880A CN 107489333 A CN107489333 A CN 107489333A
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- E05F15/00—Power-operated mechanisms for wings
- E05F15/40—Safety devices, e.g. detection of obstructions or end positions
- E05F15/42—Detection using safety edges
- E05F15/44—Detection using safety edges responsive to changes in electrical conductivity
- E05F15/443—Detection using safety edges responsive to changes in electrical conductivity specially adapted for vehicle windows or roofs
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- E05F15/00—Power-operated mechanisms for wings
- E05F15/60—Power-operated mechanisms for wings using electrical actuators
- E05F15/603—Power-operated mechanisms for wings using electrical actuators using rotary electromotors
- E05F15/665—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for vertically-sliding wings
- E05F15/689—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for vertically-sliding wings specially adapted for vehicle windows
Abstract
The invention discloses a kind of electric car window anti-pinch parameter learning method, including electric-motor drive unit, current of electric collecting unit, motor range collecting unit, window operation button collecting unit, vehicle window top dead centre and lower dead center collecting unit, anti-pinching car window unit, two anti-pinch parameters of Car window electric machine electric current and vehicle window height threshold values are learnt by current of electric collecting unit and motor range collecting unit, obtain motor threshold value and vehicle window height threshold.The anti-pinching car window of the present invention holds control method and employs design unitized, based on main flow anti-pinch hardware, only need to change relevant parameter according to actual use automobile during use, hardware need not be changed, can be widely applied to other using on the vehicle window of same hardware structure, portability is good.The present invention also discloses the anti-pinching car window control method for applying foregoing electric car window anti-pinch parameter learning method always, the anti-pinching car window control method effectively eliminates the interference of outside environmental elements, so as to obtain accurately anti-pinch effect.
Description
Technical field
The present invention relates to electric car window anti-pinch parameter learning method and anti-pinching car window control method.
Background technology
At present, the design of existing anti-clamping power windows, typically only needs to consider lifting motor electric current and glass for vehicle window
The linear relationship for the external force size being subject to, and pinch resistant functionality only needs to start in uphill process.Therefore, by anti-pinching car window control
The size of lifting motor electric current when device detection glass for vehicle window processed rises, when electric current has exceeded what is set beforehand through experiment measurement
Current threshold, then it is assumed that motor rotation blockage, vehicle window encounter barrier；Then utilize and Hall sensor is read by Hall counter
Value determines position (vehicle window height) of the glass for vehicle window relatively with window frame of automobile, so as to judge that the state of vehicle window is to be clamped, also
It is to have had arrived at top.Judge exactly, it is necessary to preset some electric currents and position to be made to the state of vehicle window
Threshold value, with the state for distinguishing vehicle window normal operation, glass for vehicle window reaches vehicle window top and glass for vehicle window clamps.
And these realize the anti-pinch parameters required for anti-holding function, current majority is by certain specific model car
Window, tested in the case of one or several kinds of environment and vehicle condition to complete to demarcate, afterwards again obtained demarcation in advance
Anti-pinch parameters be written in vehicle window controller.Therefore, it is vehicle rear window in use, anti-pinch parameters are constant always.So
And, it is contemplated that the change of the temperature and humidity caused by different seasons, the aging of the fricting strip brought with the use of vehicle window,
The abrasion of vehicle window mechanical structure, and vehicle travel on jolting on uneven road surface, the operation production that these factors all can be to vehicle window
Raw no small influence so that anti-pinch parameters set in advance become no longer to be applicable, so as to cause anti-pinch effect to be deteriorated or even fail.
As can be seen here, the realization of the pinch resistant functionality of existing clamp-proof car window, not to the detection function of environmental change, use
When lack renewal to anti-pinch parameters to adapt to different situations, under stability occurs when in face of changeable service condition
Drop, when lacking the adaptation to environment, window system is by after various influences, in fact it could happen that rises resistance increase, mechanical dimension
Change, connection member space change situations such as so that after the parameter before being continuing with, in fact it could happen that non-in vehicle window rising way
The malfunction of clamping automatic rollback, or generation clamping vehicle rear window continue upper push up without stop motor above and below rollback, and arrival not
Stop, causing parts damages.
The content of the invention
One object of the present invention is directed to the deficiencies in the prior art, there is provided a kind of electric car window anti-pinch parameter
Learning method, the present invention additionally provide a kind of anti-pinching car window control method simultaneously.
The present invention is achieved through the following technical solutions：A kind of electric car window anti-pinch parameter learning method, including motor
Driver element, current of electric collecting unit, motor range collecting unit, window operation button collecting unit, vehicle window top dead centre and
Lower dead center collecting unit, anti-pinching car window unit；Comprise the following steps：
Step 1)：After vehicle window control module first powers on, vehicle window button collecting unit is initialized；
Step 2)：Anti-pinching car window unit gradually learns to the single vehicle window of each vehicle window of automobile, and specific implementation step is such as
Under：Vehicle window button, triggering Manual descending instruction are operated, electric-motor drive unit output control signal driving glass for vehicle window moves downward
Until it is located at bottom dead center position, Manual descending is triggered always and is instructed 8~10 seconds；
After glass for vehicle window can rise automatically, stop triggering Manual descending instruction, moved in glass for vehicle window from lower dead center
During stop, anti-pinching car window unit is by current of electric collecting unit and motor range collecting unit to Car window electric machine electricity
Stream and two anti-pinch parameters of vehicle window height threshold values are learnt, and obtain motor threshold value and vehicle window height threshold, specific implementation process
It is as follows：
1. in motion process of the glass for vehicle window from lower dead center to top dead centre, electric-motor drive unit produces interrupt request singal point
Gei not current acquisition unit and motor range collecting unit：
Current acquisition unit responds interrupt requests, gives micro resistance both end voltage value to electricity by hardware amplification and rectification circuit
In stream calculation device, the resistance of resistance both end voltage value divided by micro resistance is obtained current of electric by current calculator, and difference is adopted
Sample moment Δ t2 motor current value is recorded and is saved in default electric current array；
Stroke collecting unit responds interrupt request singal, and micro resistance both end voltage signal is amplified by hardware, be shaping, micro-
Parallel circuit obtains square-wave pulse signal, is sent to trip counter, and trip counter records square-wave pulse in a manner of cumulative
Number, and be stored in default window travel array；
2. the current of electric of the different sampling instants 1. recorded according to step and the individual numerical value of travel parameters are drawn out accordingly
Vehicle window motion when motor current curve, stroke pulse curve and current-differencing curve；
3. analyzing current curve, stroke pulse curve and current-differencing curve, show that glass for vehicle window reaches only
Anti-pinch threshold value of the average value of some groups of current of electric data as Car window electric machine before point sampling moment Δ t3；
4. analyzing stroke pulse curve, draw when glass for vehicle window moves to the number of top dead centre moment pulse accumulation
It is constant within a certain period of time, by the numerical value of accumulator as glass from lower dead center to top dead centre trip count parameter, by cumulative
Above-mentioned trip count parameter and then obtain vehicle window height threshold values；
Step 3)：Current of electric threshold value and vehicle window height threshold that self study in step 2 obtains are sent to memory cell
Stored, and as being set as anti-pinch parameters threshold value.
In above-mentioned technical proposal, excessively following judgment mode judges that motor is located at top dead centre or stall situation after bottom dead center：
Voltage comparator method, current sample method, stroke impulse method, above-mentioned three kinds of method specific implementation process are as follows：
1. voltage comparator method：Corresponding vehicle window is sent into from pressure drop caused by electric current during micro resistance both ends collection motor work
Voltage comparator in, compared with the reference voltage of voltage comparator, when current of electric be more than motor top dead centre and it is lower only
During the locked rotor current of point, comparator output level is to control unit；
2. current sample method：Pressure drop caused by electric current when being worked from micro resistance both ends sample motor, is sent into corresponding vehicle window
Current acquisition unit in, when more than the reference voltage of voltage comparator, it is believed that motor rotation blockage；
3. stroke impulse method：From pressure drop caused by electric current during micro resistance both ends collection motor work, stroke collection is sent into
Unit, when no square-wave pulse produces, it is believed that motor rotation blockage；
Wherein three of the above judge priority that the method for motor top dead centre and lower dead center is sent into after electric-motor drive unit from
It is high to Low to be followed successively by：Voltage comparison method → current sample method → stroke impulse method.
In above-mentioned technical proposal, the sampling instant Δ t3 is arranged to 10ms, the preceding some groups of current of electric data tool
Body chooses 15 groups.
In above-mentioned technical proposal, certain time is chosen for 100ms described in the 4th step in the step 2.
It is a further object of the present invention to provide a kind of anti-pinching car window control method, passes through such as above-mentioned electric car window anti-pinch parameter
Motor threshold value and vehicle window height threshold are obtained in learning method, the anti-pinching car window control method comprises the following steps：1) detect
It is simultaneously compared by current of electric in anti-pinch current threshold, if it is more than current threshold, now checks the position of window travel
Put, if be in anti-pinch section, judge that vehicle window clamps, now start motor reversal to vehicle window and drop to initial bit
Put；If judge that detection electric current is less than anti-pinch current threshold, judge not clamp.
In above-mentioned technical proposal, start in vehicle window in Δ t1 and the electric current of Car window electric machine is not made a decision, after starting Δ t1, even
The continuous multiple current value of sampling, and the electric current of multiple repairing weld is averaged, current effective value Ieff is calculated, as Car window electric machine
The initial current value of motion, if current effective value is more than anti-pinch threshold value when learning, glass for vehicle window anti-pinch, drop to only
Point；If being less than anti-pinch threshold value, continue to judge while whether be single or the risings of two vehicle windows, if judging while to be single or two
2. individual vehicle window, which rises, then uses algorithm, 3. other situations then use algorithm, algorithm is 2. 3. specific as follows with algorithm：
Algorithm is 2.：Current changing rate computational methods：The average value of the more primary currents of continuous sampling as one group of current data all
Compared with current effective value Ieff, calculate slope value, when slope value be more than the slope value that draws of anti-pinch study analysis and
In anti-pinch stroke range, vehicle window clamping is judged；
Algorithm is 3.：The integral of current changing rate：2. slope value that algorithm is drawn is recorded and is saved in default
In array, sampling instant 50ms is set, to slope value data analysis, is more than integration anti-pinch threshold value when obtaining slope integrated value.
Current of electric is detected in above-mentioned technical proposal, in the step 1) and is compared it in anti-pinch current threshold,
If it is more than current threshold, the position of window travel is now checked, if in when pushing up within area, waits window locations static
After a period of time, vehicle window is stopped, it is believed that vehicle window has arrived top.
The present invention has the advantages that：The present invention anti-pinching car window hold control method employ it is unitized, be based on
The design of main flow anti-pinch hardware, only need during use to change relevant parameter according to actual use automobile, can be with without changing hardware
It is widely used in other using on the vehicle window of same hardware structure, portability is good.The present invention can be widely used in automobile
In vehicle window control.The anti-pinching car window control method of the present invention can effectively exclude the interference of outside environmental elements, so as to obtain essence
Accurate anti-pinch effect.
Embodiment
The present invention is described in further detail with reference to embodiment：A kind of electric car window anti-pinch parameter study
Method, including electric-motor drive unit, current of electric collecting unit, motor range collecting unit, window operation button collecting unit,
Vehicle window top dead centre and lower dead center collecting unit, anti-pinching car window unit；Comprise the following steps：
Step 1)：After vehicle window control module first powers on, vehicle window button collecting unit is initialized；
Step 2)：Anti-pinching car window unit gradually learns to the single vehicle window of each vehicle window of automobile, and specific implementation step is such as
Under：Vehicle window button, triggering Manual descending instruction are operated, electric-motor drive unit output control signal driving glass for vehicle window moves downward
Until it is located at bottom dead center position, Manual descending is triggered always and is instructed 8~10 seconds；
After glass for vehicle window can rise automatically, stop triggering Manual descending instruction, moved in glass for vehicle window from lower dead center
During stop, anti-pinching car window unit is by current of electric collecting unit and motor range collecting unit to Car window electric machine electricity
Stream and two anti-pinch parameters of vehicle window height threshold values are learnt, and obtain motor threshold value and vehicle window height threshold, specific implementation process
It is as follows：
1. in motion process of the glass for vehicle window from lower dead center to top dead centre, electric-motor drive unit produces interrupt request singal point
Gei not current acquisition unit and motor range collecting unit：
Current acquisition unit responds interrupt requests, gives micro resistance both end voltage value to electricity by hardware amplification and rectification circuit
In stream calculation device, the resistance of resistance both end voltage value divided by micro resistance is obtained current of electric by current calculator, and difference is adopted
Sample moment Δ t2 motor current value is recorded and is saved in default electric current array；
Stroke collecting unit responds interrupt request singal, and micro resistance both end voltage signal is amplified by hardware, be shaping, micro-
Parallel circuit obtains square-wave pulse signal, is sent to trip counter, and trip counter records square-wave pulse in a manner of cumulative
Number, and be stored in default window travel array；
2. the current of electric of the different sampling instants 1. recorded according to step and the individual numerical value of travel parameters are drawn out accordingly
Vehicle window motion when motor current curve, stroke pulse curve and current-differencing curve；
3. analyzing current curve, stroke pulse curve and current-differencing curve, show that glass for vehicle window reaches only
Anti-pinch threshold value of the average value of some groups of current of electric data as Car window electric machine before point sampling moment Δ t3；
4. analyzing stroke pulse curve, draw when glass for vehicle window moves to the number of top dead centre moment pulse accumulation
It is constant within a certain period of time, by the numerical value of accumulator as glass from lower dead center to top dead centre trip count parameter, by cumulative
Above-mentioned trip count parameter and then obtain vehicle window height threshold values；
Step 3)：Current of electric threshold value and vehicle window height threshold that self study in step 2 obtains are sent to memory cell
Stored, and as being set as anti-pinch parameters threshold value.
In above-mentioned technical proposal, excessively following judgment mode judges that motor is located at top dead centre or stall situation after bottom dead center：
Voltage comparator method, current sample method, stroke impulse method, above-mentioned three kinds of method specific implementation process are as follows：
1. voltage comparator method：Corresponding vehicle window is sent into from pressure drop caused by electric current during micro resistance both ends collection motor work
Voltage comparator in, compared with the reference voltage of voltage comparator, when current of electric be more than motor top dead centre and it is lower only
During the locked rotor current of point, comparator output level is to control unit；
2. current sample method：Pressure drop caused by electric current when being worked from micro resistance both ends sample motor, is sent into corresponding vehicle window
Current acquisition unit in, when more than the reference voltage of voltage comparator, it is believed that motor rotation blockage；
3. stroke impulse method：From pressure drop caused by electric current during micro resistance both ends collection motor work, stroke collection is sent into
Unit, when no square-wave pulse produces, it is believed that motor rotation blockage；
Wherein three of the above judge priority that the method for motor top dead centre and lower dead center is sent into after electric-motor drive unit from
It is high to Low to be followed successively by：Voltage comparison method → current sample method → stroke impulse method.
In above-mentioned technical proposal, the sampling instant Δ t3 is arranged to 10ms, the preceding some groups of current of electric data tool
Body chooses 15 groups.
In above-mentioned technical proposal, certain time is chosen for 100ms described in the 4th step in the step 2.
It is a further object of the present invention to provide a kind of anti-pinching car window control method, passes through such as above-mentioned electric car window anti-pinch parameter
Motor threshold value and vehicle window height threshold are obtained in learning method, the anti-pinching car window control method comprises the following steps：1) detect
It is simultaneously compared by current of electric in anti-pinch current threshold, if it is more than current threshold, now checks the position of window travel
Put, if be in anti-pinch section, judge that vehicle window clamps, now start motor reversal to vehicle window and drop to initial bit
Put；If judge that detection electric current is less than anti-pinch current threshold, judge not clamp.
In above-mentioned technical proposal, start in vehicle window in Δ t1 and the electric current of Car window electric machine is not made a decision, after starting Δ t1, even
The continuous multiple current value of sampling, and the electric current of multiple repairing weld is averaged, current effective value Ieff is calculated, as Car window electric machine
The initial current value of motion, if current effective value is more than anti-pinch threshold value when learning, glass for vehicle window anti-pinch, drop to only
Point；If being less than anti-pinch threshold value, continue to judge while whether be single or the risings of two vehicle windows, if judging while to be single or two
2. individual vehicle window, which rises, then uses algorithm, 3. other situations then use algorithm, algorithm is 2. 3. specific as follows with algorithm：
Algorithm is 2.：Current changing rate computational methods：The average value of the more primary currents of continuous sampling as one group of current data all
Compared with current effective value Ieff, calculate slope value, when slope value be more than the slope value that draws of anti-pinch study analysis and
In anti-pinch stroke range, vehicle window clamping is judged；
Algorithm is 3.：The integral of current changing rate：2. slope value that algorithm is drawn is recorded and is saved in default
In array, sampling instant 50ms is set, to slope value data analysis, (anti-pinch threshold values is not according to herein when obtaining slope integrated value
It can be obtained with vehicle beforehand through experience or experiment, this numerical value belongs to this area general staff without involving an inventive effort
Available content, this is not repeated here in embodiment) when, then judge there is barrier in vehicle window uphill process, then judge
When vehicle window clamping is more than integration anti-pinch threshold value, then judge there is barrier in vehicle window uphill process, then judge that vehicle window clamps.
Current of electric is detected in above-mentioned technical proposal, in the step 1) and is compared it in anti-pinch current threshold,
If it is more than current threshold, the position of window travel is now checked, if in when pushing up within area, waits window locations static
After a period of time, vehicle window is stopped, it is believed that vehicle window has arrived top.
In above-mentioned technical proposal, the Δ t1 is set as 200ms.
General principle, principal character and the advantages of the present invention of the present invention has been shown and described above.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments.In the application described in above-described embodiment and specification only
It is the principle of the present invention, various changes and modifications of the present invention are possible without departing from the spirit and scope of the present invention.On
Changes and improvements are stated to both fall within the range of claimed invention.
Claims (8)
1. a kind of electric car window anti-pinch parameter learning method, including electric-motor drive unit, current of electric collecting unit, motor range
Collecting unit, window operation button collecting unit, vehicle window top dead centre and lower dead center collecting unit, anti-pinching car window unit；Bag
Include following steps：
Step 1）：After vehicle window control module first powers on, vehicle window button collecting unit is initialized；
Step 2）：Anti-pinching car window unit gradually learns to the single vehicle window of each vehicle window of automobile, and specific implementation step is as follows：Behaviour
Make vehicle window button, triggering Manual descending instruction, electric-motor drive unit output control signal driving glass for vehicle window move downward until
It is located at bottom dead center position, triggers Manual descending always and instructs 8 ~ 10 seconds；
After glass for vehicle window can rise automatically, stop triggering Manual descending instruction, top dead centre is moved to from lower dead center in glass for vehicle window
During, anti-pinching car window unit by current of electric collecting unit and motor range collecting unit to Car window electric machine electric current and
Two anti-pinch parameters of vehicle window height threshold values are learnt, and obtain motor threshold value and vehicle window height threshold, specific implementation process is as follows：
1. in motion process of the glass for vehicle window from lower dead center to top dead centre, electric-motor drive unit produces interrupt request singal and given respectively
Current acquisition unit and motor range collecting unit：
Current acquisition unit responds interrupt requests, gives micro resistance both end voltage value to galvanometer by hardware amplification and rectification circuit
To calculate in device, the resistance of resistance both end voltage value divided by micro resistance is obtained current of electric by current calculator, and during by different samplings
The motor current value for carving t2 is recorded and is saved in default electric current array；
Stroke collecting unit respond interrupt request singal, micro resistance both end voltage signal is amplified by hardware, shaping, differential electricity
Rood is sent to trip counter to square-wave pulse signal, and trip counter records the number of square-wave pulse in a manner of cumulative,
And it is stored in default window travel array；
2. the current of electric of the different sampling instants 1. recorded according to step and the individual numerical value of travel parameters draw out corresponding car
Motor current curve, stroke pulse curve and current-differencing curve when window moves；
3. analyzing current curve, stroke pulse curve and current-differencing curve, show that glass for vehicle window reaches top dead centre and adopted
Anti-pinch threshold value of the average value of some groups of current of electric data as Car window electric machine before sample moment t3；
4. analyzing stroke pulse curve, draw when glass for vehicle window moves to the number of top dead centre moment pulse accumulation one
Fix time interior constant, by the numerical value of accumulator as glass from lower dead center to top dead centre trip count parameter, by cumulative above-mentioned
Trip count parameter and then obtain vehicle window height threshold values；
Step 3）：Current of electric threshold value and vehicle window height threshold that self study in step 2 obtains are sent to memory cell and carried out
Storage, and as being set as anti-pinch parameters threshold value.
A kind of 2. electric car window anti-pinch parameter learning method as claimed in claim 1, it is characterised in that：Pass through following judgement side
Formula judges that motor is located at top dead centre or stall situation after bottom dead center：Voltage comparator method, current sample method, stroke impulse method,
Above-mentioned three kinds of method specific implementation process are as follows：
1. voltage comparator method：The electricity of corresponding vehicle window is sent into from pressure drop caused by electric current during micro resistance both ends collection motor work
Press in comparator, compared with the reference voltage of voltage comparator, when current of electric is more than motor in top dead centre and lower dead center
During locked rotor current, comparator output level is to control unit；
2. current sample method：Pressure drop caused by electric current when being worked from micro resistance both ends sample motor, it is sent into the electricity of corresponding vehicle window
Flow in collecting unit, when more than the reference voltage of voltage comparator, it is believed that motor rotation blockage；
3. stroke impulse method：From pressure drop caused by electric current during micro resistance both ends collection motor work, stroke collecting unit is sent into,
When no square-wave pulse produces, it is believed that motor rotation blockage；
Wherein three of the above judge priority that the method for motor top dead centre and lower dead center is sent into after electric-motor drive unit from height to
It is low to be followed successively by：Voltage comparison method → current sample method → stroke impulse method.
A kind of 3. electric car window anti-pinch parameter learning method as claimed in claim 1, it is characterised in that：The sampling instant
T3 is arranged to 10ms, and the preceding some groups of current of electric data specifically choose 15 groups.
A kind of 4. electric car window anti-pinch parameter learning method as claimed in claim 1, it is characterised in that：The 4th in the step 2
Certain time is chosen for 100ms described in step.
5. anti-pinching car window control method, by obtaining motor threshold value and car in any one in such as claim 1 to claim 4
Window height threshold, it is characterised in that：The anti-pinching car window control method comprises the following steps：1）Detect current of electric and by its in
Anti-pinch current threshold is compared, if it is more than current threshold, the position of window travel is now checked, if being in anti-pinch section
When interior, then judge that vehicle window clamps, now start motor reversal to vehicle window and drop to initial position；If judging, detection electric current is small
When anti-pinch current threshold, then judge not clamp.
6. anti-pinching car window control method as claimed in claim 5, it is characterised in that：Start in vehicle window in t1 to Car window electric machine
Electric current do not make a decision, after starting t1, the multiple current value of continuous sampling, and be averaged to the electric current of multiple repairing weld, calculating
Go out current effective value Ieff, as the initial current value of Car window electric machine motion, if current effective value is more than anti-pinch threshold when learning
Value, then glass for vehicle window anti-pinch, drops to lower dead center；If being less than anti-pinch threshold value, continue to judge while whether be single or two
Vehicle window rises, if judge and meanwhile for the risings of single or two vehicle windows if use algorithm 2., 3. other situations then use algorithm, algorithm
It is 2. 3. specific as follows with algorithm：
Algorithm is 2.：Current changing rate computational methods：The average value of the more primary currents of continuous sampling as one group of current data all with electricity
Stream virtual value Ieff is compared, and calculates slope value, when slope value is more than the slope value that draws of anti-pinch study analysis and in anti-pinch
In stroke range, vehicle window clamping is judged；
Algorithm is 3.：The integral of current changing rate：2. slope value that algorithm is drawn records and is saved in preset group
In, sampling instant 50ms is set, to slope value data analysis, when obtaining slope integrated value more than integration anti-pinch threshold value, is then sentenced
Determine have barrier in vehicle window uphill process, then judge that vehicle window clamps.
7. anti-pinching car window control method as claimed in claim 5, it is characterised in that：Step 1）It is middle detection current of electric and by its
Be compared in anti-pinch current threshold, if it is more than current threshold, now check window travel position, if in top area with
When interior, then after waiting window locations static a period of time, vehicle window is stopped, it is believed that vehicle window has arrived top.
8. anti-pinching car window control method as claimed in claim 5, it is characterised in that：The t1 is set as 200ms.
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| CN108131073A (en) * | 2018-01-31 | 2018-06-08 | 东方久乐汽车电子（上海）股份有限公司 | A kind of anti-pinching car window self-learning method based on current sample |
| CN108177614A (en) * | 2018-02-11 | 2018-06-19 | 江苏卡威汽车工业集团股份有限公司 | A kind of vehicle window control system of picking-up vehicle |
| CN108590425A (en) * | 2018-05-30 | 2018-09-28 | 天顶星（天津）电子科技有限责任公司 | A kind of high reliability vehicle window control method |
| CN109240182A (en) * | 2018-11-14 | 2019-01-18 | 刘盛荣 | The anti-clamping method of Electric sofa based on electrical curve |
| CN110481441A (en) * | 2019-09-26 | 2019-11-22 | 长春众鼎科技有限公司 | The anti-blocking control circuit of motorcar electric pedal anti-pinch and method |
| CN110735577A (en) * | 2019-08-21 | 2020-01-31 | 施志义 | automatic switching method and system for anti-pinch and locked-rotor of electric vehicle window |
| CN111109840A (en) * | 2019-11-22 | 2020-05-08 | 上海衡鲁汽车科技有限公司 | Self-learning-based lifting control system and anti-pinch method thereof |
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Application publication date: 20171219 |